CN201106478Y

CN201106478Y - Vent gas discharging structure of motorcycle vent pipe

Info

Publication number: CN201106478Y
Application number: CNU2007200820330U
Authority: CN
Inventors: 曹宇
Original assignee: Chengdu Yuzhongmei Science and Technology Co Ltd
Current assignee: Chengdu Yuzhongmei Science and Technology Co Ltd
Priority date: 2007-11-18
Filing date: 2007-11-18
Publication date: 2008-08-27
Anticipated expiration: 2017-11-18

Abstract

The utility model discloses an autocycle exhaust emission structure, which comprises a catalyst chamber and an anechoic chamber, wherein, the cavity walls of inner cavities of the catalyst chamber and the anechoic chamber are composed of metals; a layer of porcelain uniformly covers on the metallic cavity wall. Sound waves are reflected on the porcelain layer instead of on the metallic cavity wall because the exhaust emission structure is covered with the porcelain layer, the sound reflecting medium can be effectively improved without forming physical resonance, and thus the anechoic capacity is strengthened. The exhaust emission structure is applied to all autocycles.

Description

The exhaust emissions structure of motorcycle

Technical field the utility model relates to a kind of discharge structure, especially the exhaust emissions structure of motorcycle.

The outlet pipe of background technique motorcycle is placed near the wood clapper between the front and rear wheel usually.Motorcycle noise in motion is very big, and its main cause is exactly that the exhaust emissions structure exists deficiency, and the structure shape of its catalyst chamber, anechoic room is as audio amplifier, and the inner chamber that its metallic walls constitutes is easy to generate sympathetic response.

Chinese patent CN2033060 number disclosed " ceramic honeycomb catalytic cleaner " patent (application number: 88206160.7), its catalyst chamber is made of the catalyst unit of one group or two groups a plurality of weldering connection, form between two catalyst units and mix the gas anechoic room, ceramic body in the catalyst unit directly contacts with ring set is non-, has eliminated ceramic body and metal ring set because the loosening and mechanical shock that thermal coefficient of expansion difference produces.Chinese patent CN1403413 number disclosed " a kind of porous fiber ceramic forming method and device thereof " patent (application number: 02134934.7), the shape of porous fiber ceramic hole, size, distribution can be controlled by the hole size of filter screen in the mould, compressed-air actuated pressure, advantage such as that prepared porous ceramics has is high temperature resistant, the porosity is high, light weight, good permeability, acoustic attenuation performance are good, be particularly suitable for the high-temperature flue gas dust removal by filtration, it also can be used as the auto-exhaust catalyst carrier simultaneously.The deficiency of these two patents is: therefore the problem to the inner chamber of the also unresolved genus wall formation of the improvement of ceramic body is empathized does not fundamentally solve the motorcycle noise problem.

In addition, do not retrieve and solve to belong to empathize other file of problem of inner chamber that wall constitutes.

The summary of the invention the purpose of this utility model is exactly the exhaust emissions structure that a kind of motorcycle simple in structure will be provided, and under the prerequisite that does not influence normal exhaust, strengthens acoustical absorptivity.

In order to achieve the above object, the exhaust emissions structure of the motorcycle that the utility model provides comprises catalyst chamber, anechoic room, and wherein, the inner chamber chamber wall of catalyst chamber, anechoic room is made of metal; Evenly cover one deck pottery on the wire chamber wall.When the utility model uses, owing to covered one deck pottery, make and reflection and on ceramic layer, reflecting on the wire chamber wall of sound wave can effectively improve the acoustic reflection medium, can not form sympathetic response.

The exhaust emissions structure of the motorcycle that the utility model provides has positive effect: comprise catalyst chamber, anechoic room, wherein, the inner chamber chamber wall of catalyst chamber, anechoic room is made of metal, evenly covers one deck pottery on the wire chamber wall; The utility model is simple in structure, does not influence the normal exhaust of outlet pipe, can effectively improve the acoustic reflection medium, strengthens acoustical absorptivity.

Description of drawings the utility model will be further described in conjunction with the accompanying drawings, please referring to accompanying drawing:

Accompanying drawing 1 expression schematic representation of the present utility model.

Structure shown in the accompanying drawing 1 comprises: wire chamber wall 1, pottery 2, inner chamber 3.

The exhaust emissions structure of the motorcycle that embodiment the utility model provides comprises catalyst chamber, anechoic room, and wherein, the inner chamber 3 chamber walls of catalyst chamber, anechoic room are made of metal; Evenly cover one deck pottery 2 on the wire chamber wall 1.When the utility model uses,, make sound wave on ceramic 2 layers, not reflect, can effectively improve the acoustic reflection medium, can not form sympathetic response in reflection on the wire chamber wall 1 owing to covered one deck pottery 2.

The utility model protection domain relates to all changes form recited above.

Claims

1, a kind of exhaust emissions structure of motorcycle comprises catalyst chamber, anechoic room, and wherein, the inner chamber of catalyst chamber, anechoic room (3) chamber wall is made of metal, it is characterized in that: wire chamber wall (1) is gone up and is evenly covered one deck pottery (2).